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Independent tunable-Q/ω biquadratic filter employing only active elements
Author(s)
Jongchanachavawat, Wirote
Dejhan, Kobchai
Chaisayun, Ittipong
Date Issued
December 1, 2006
Type
Conference Paper
Abstract
A new active-only biquadratic filter employing OTAs and OAs is introduced. This circuit is fullly integrable, and programmable, and implements all the three filtering functions (low-pass, High-pass and Band-pass). The filter offers low active sensitivities and its parameters ω and Q-factor can be separately tuned by electronic means through controlling the transconductance gains of the OTAs and insensitivity to temperature variations. The PSPICE simulation was carried out to realize the proposed circuit. © 2006 IEEE.
Citation
2006 International Symposium on Communications and Information Technologies Iscit, 1080-1083, 2006